Homework turn in (late)

Dear Dr.Brinkman
I completed the homework, this is a late turn in and I completely understand if you do not not accept it.
I received your email asking if there was any errors with the submission, there were not.
I procrastinated with the assignment and got extremely more busy than expected this week with career fair; I apologize, it is entirely my fault I did not turn it in on time.
Sincerely,
Pob